this is hillary clinton's last day as secretary of state. she will say goodbye to employees at a public ceremony. as for what's next for her, clinton has been rumored to be considering another run for president in 2016. nbc news's andrea mitchell says she's not sure what her future will be. >> i have no position on any of this. i have no opinion about itment i'm still secretary of state. i can't really engage in politic. and for the foreseeable future, i don't think that i will be at all political. >> john kerry will succeed clinton at the state department and he will be sworn in today. >>> melissa mollet at the live desk. >> good morning. we have breaking news into the newsroom. we're just getting in some reports of an explosion outside the u.s. embassy in turkey. it happened a few moments ago. ambulances have now been sent to the area, rescue crews as well. we'll pass along more information as we get it. at the live debts being, melissa mollet, news 4. >>> it will be a kiss that has people talking on monday morning. >> the super bowl comme